Hanging-up attachment for stamp-batteries



(No Model.)

I. K. OLEAVER. HANGING UP ATTAOHMBNT FOB. STAMP BATTERIES. No. 434,555. Patented Aug. 19,1890.

51mm wmmw 42cm flm ms 20., PHom-Lrmq., wAsmNqToN. m c.

UNITED STATES PATENT. OFFICE.

ISAAC K. CLEAVER, OF DEADVVOOD, CALIFORNIA.

HANGING-UP ATTACHMENT FOR STAMP-BATTERIES.

SPECIFICATION forming part of Letters Patent No. 434,555, dated August 19, 1890.

Application filed Kay 19, 1890. Serial No. 352,398. (No model.)

To all whom it may concern: v

Be it known that I, ISAAC K. OLEAVER, a citizen of the United States, residing at Deadwood, Trinity county, State of California, have invented an Improvement in Hanging- Up Attachments for Stamp-Batteries; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to the class of stampbatteries and especially to that class of devices in connection therewith the object of which is to hold in an elevated position any one or all of the stamps for repairs, readjustment, or other pu rposes, and which are usually known as hanging-up attachments.

My invention consists in the novel construction hereinafter fully described, and specifically pointed out in the claims.

The object of my invention is to provide a simple and effective means for hanging up one or more of the stamps, said means being of a character which will tend to grip the stem the tighter according to the effort due to the weight of the stamp itself and the jarring of the operating-stamps to work the stem loose, so that I am enabled to hang up any one or more stamps effectively notwithstanding the continued operation of the remaining stamps.

Another object is to permit the ready turning of the hung-up stamp-stem to any convenient position in which to carry out the purpose for which it is hung up.

Referring to the accompanying drawings for a more complete explanation of my invention, Figure 1 is a side elevation of my attachment, the full lines showing the gripping-jaws in an open or inoperative position,

their operative position being shown in dotted lines. Fig. 2 is a plan of my attachment.

I have not deemed it necessary herein to show the stamp-battery, it being sufficient to indicate one of the stamp-stems by A.

B is a fixed bracket, supposed to be supported by the frame of the battery. It encircles the stamp-stem A, and the latter plays freely up and down through it. Between the ends of the brackets are the eyebolts 'b, and upon these are pivoted the opposing camshaped gripping-jaws C. These jaws have straight faces a for their inoperative position,

and curved or cam faces 0 for their gripping position. The ends D of the jaws project outwardly from the bracket ends, and to them are connected the lower ends of the liftingchains E. These chains at their upper ends join or connect with a swivel-ring F, to which any suitable hoisting mechanism may be connected. Now, when the stamp is operating the jaws lie straight and the stem plays up and down between their straight faces 0; but to hang up the stamp the swivel-ring F is hoisted, and through the lifting-chains the jaws are swung so that their curved gripping-faces come down against and bind on the the stem on each side, and as long as the tension is kept on the chains the jaws grip and hold the stem. Being cams, by reason of their position and curved faces they tighten on the stem the harder as the latter tends to pass down between them. Therefore no matter how great may be the jar of the operating-stamps the particular stamp hung up will not be loosened, but on the contrary will be tightened, and by reason of the swivel-ring F the hung-up stem may be turned to the most convenient position for working. There can be no slipping of the stem in the use of this attachment.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A hanging-up attachment for stamp-batteries, consisting of the fixed bracket through which the stamp-stem plays, the opposing cam-shaped gripping-jaws C, pivoted in the bracket ends on each side of the stem, and the lifting-chains connected with the jaws for turning them to bind on and hold the stem, substantially as herein described.

2. A hanging-up attachment for stamp-batteries, consisting of the fixed bracket encircling the stamp-stem, the opposing jaws O, pivoted in the bracket ends and having straight faces 0 and curved or cam faces 0, and the lifting-chains connected with the jaws and adapted to turn them and throw their curved or cam faces against the stem to hold it, substantially as herein described.

3. .A hanging-up attachment for stamp-batteries, consisting of the fixed bracket, the opposing cam-shaped gripping-jaws C, pivoted in said bracket and adapted to bind upon and In witness whereof I have hei'euntd set my hold the stamp-stein, the lifting-chains eonhand. neeted with the jaws to operate them, and the swivel-ring with which the lifting-chains are ISAAC CLEAVER' 5 connected, whereby the hung-up stem may be Witnesses:

turned to convenient positions, substantially J. F. BOYLE,

as herein described.

J. A. MILLER. 

